Continuous synthesis of N,N-dicyanoethylaniline in microreactors:Reaction kinetics and process intensification

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外文摘要：Cyanoethylation of phenylamine is one of the important steps for the production of dicyanoethyl-based disperse dyes.However,the exothermic nature of this reaction and the inherent instability of inter-mittent dynamic operation pose challenges in achieving both high safety and reaction efficiency.In this study,a continuous cyanoethylation of phenylamine for synthesizing N,N-dicyanoethylaniline in a microreactor system has been developed.By optimizing the reaction conditions,the reaction time was significantly reduced from over 2 h in batch operation to approximately 14 min in the microreactor,while high conversion and selectivity were maintained.Based on the reaction network constructed,the reaction kinetics was established,and the kinetic parameters were then determined.These findings provide valuable insights into a controllable cyanoethylation reaction,which would be helpful for the design of efficient processes and optimization of reactors.

外文关键词：

CyanoethylationMicroreactorKineticsN,N-dicyanoethylanilineOptimizationSafety

作者：

Pengcheng Lu、Yaoyao Li、Jianjun Zhang、Yuchao Zhao、Qingqiang Wang、Ying Chen、Nan Jin、Xiugang Yu

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作者单位：

Shandong Provincial Key Laboratory of Chemical Engineering and Process,College of Chemistry and Chemical Engineering,Yantai University,Yantai 264005,China

Shandong ANOKY Chemical Technology Research Co.,Ltd.,Yantai 265601,China

Yantai Guobang Chemical Machinery Technology Co.,Ltd.,Yantai 264000,China

基金：

National Natural Science Foundation of ChinaNational Natural Science Foundation of ChinaNatural Science Foundation of Shandong ProvinceNatural Science Foundation of Shandong ProvinceYouth Innovation Team Plan of Shandong Province

项目编号：

2237834422208278ZR2023MB120ZR2023QB1522022KJ270

出版年：

2024

DOI：

10.1016/j.cjche.2024.06.001

中国化学工程学报(英文版)

中国化工学会

中国化学工程学报(英文版)

CSTPCDEI

影响因子：0.818

ISSN：1004-9541

年,卷(期)：2024.72(8)